Gas, Water, and Oil Production from the Wasatch Formation, Greater Natural Buttes Field, Uinta Basin, Utah

Nelson, Philip H.; Hoffman, Eric L.

Abstract:

Gas, oil, and water production data were compiled from 38 wells with production commencing during the 1980s from the Wasatch Formation in the Greater Natural Buttes field, Uinta Basin, Utah. This study is one of a series of reports examining fluid production from tight gas reservoirs, which are characterized by low permeability, low porosity, and the presence of clay minerals in pore space. The general ranges of production rates after 2 years are 100-1,000 mscf/day for gas, 0.35-3.4 barrel per day for oil, and less than 1 barrel per day for water. The water:gas ratio ranges from 0.1 to10 barrel per million standard cubic feet, indicating that free water is produced along with water dissolved in gas in the reservoir. The oil:gas ratios are typical of a wet gas system. Neither gas nor water rates show dependence upon the number of perforations, although for low gas-flow rates there is some dependence upon the number of sandstone intervals that were perforated. Over a 5-year time span, gas and water may either increase or decrease in a given well, but the changes in production rate do not exhibit any dependence upon well proximity or well location.

Genre:

USGS Numbered Series

ProdID:

97412

Citation Author:

Nelson, Philip H.; Hoffman, Eric L.

Citation Contributing Office:

Central Energy Resources Team

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Version 1.0

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Citation Language:

ENGLISH

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Citation LatN:

0410000

Citation LatS:

0380000

Citation LonE:

-1054500

Citation LonW:

-1120000

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Citation Phsyical Description:

Report: 19 p.; Plates: 24 x 18 inches; Downloads Directory

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Citation Publisher:

U.S. Geological Survey

Citation Series:

Open-File Report

Citation Series Code:

OFR

Citation Series Number:

2009-1049

Citation Search Results Text:

Gas, Water, and Oil Production from the Wasatch Formation, Greater Natural Buttes Field, Uinta Basin, Utah; 2009; OFR; 2009-1049; Nelson, Philip H.; Hoffman, Eric L.

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Citation Year:

2009

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citation/reference

Text:

Gas, Water, and Oil Production from the Wasatch Formation, Greater Natural Buttes Field, Uinta Basin, Utah; 2009; OFR; 2009-1049; Nelson, Philip H.; Hoffman, Eric L.